Oxide and Dioxide What's the Difference?

Oxide Means 1 Dioxide Means 2

An oxide is a chemical compound that contains one oxygen atom and one atom of another chemical element. Iron oxide (rust) is a chemical compound of iron and oxygen.

Oxides form when oxygen or water react with other chemical elements.

Dioxide is an oxide that contains two oxygen atoms plus an atom of another chemical element.  Carbon dioxide is a chemical compound of two oxygen atoms plus one carbon atom.